Problems

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
0-1 Sequences	3880	604	16%	0.01	784	413	53%	7.2
10 Kinds of People	6680	1443	22%	0.01	1159	795	69%	5.2
2048	4483	2172	48%	0.00	2063	1760	85%	2.4
3D Printed Statues	3142	1549	49%	0.00	1451	1301	90%	2.0
3D Printer	306	51	17%	0.00	97	44	45%	8.8
3-Sided Dice	1350	95	7%	0.00	215	75	35%	8.7
4 thought	4171	1413	34%	0.00	1405	1171	83%	2.8
A1 Paper	2946	882	30%	0.00	856	669	78%	3.4
Aaah!	14019	6834	49%	0.00	5962	5540	93%	1.7
Abandoned Animal	653	115	18%	0.03	140	99	71%	5.4
ABC	4705	2222	47%	0.00	2124	1927	91%	1.7
Above Average	1811	792	44%	0.00	810	735	91%	1.8
A+B Problem	3717	362	10%	0.04	554	190	34%	8.4
A Brief Gerrymander	103	20	19%	0.15	21	12	57%	7.2
Abstract Art	166	38	23%	0.00	34	26	76%	5.9
Absurdistan Roads II	465	165	35%	0.00	157	106	68%	6.7
Absurdistan Roads III	1060	277	26%	0.02	266	192	72%	6.1
A Classy Problem	4727	1259	27%	0.01	1076	836	78%	4.2
ACM Contest Scoring	3973	2468	62%	0.00	2149	2034	95%	1.5
Adding Words	5006	1117	22%	0.00	1190	900	76%	3.8
A Different List Game	4674	324	7%	0.00	565	110	19%	9.1
A Different Problem	16585	6532	39%	0.00	6034	5233	87%	2.3
Adjoin the Networks	1186	323	27%	0.00	278	212	76%	6.0
Administrative Difficulties	523	117	22%	0.03	147	92	63%	6.6
Advanced Causal Measurements	22	5	23%	0.10	6	5	83%	5.6
Adventures in Moving -- Part IV	549	175	32%	0.00	163	139	85%	4.7
A Favourable Ending	890	186	21%	0.00	213	144	68%	5.1
A Feast For Cats	1018	368	36%	0.19	243	197	81%	4.9
Air Conditioned Minions	2430	674	28%	0.00	725	535	74%	4.3
Airline Hub	1291	221	17%	0.01	250	136	54%	7.0
Airport Coffee	610	132	22%	0.09	116	92	79%	6.3
Airport Construction	2471	331	13%	0.02	252	132	52%	7.2
Airport Logistics	45	10	22%	0.00	16	10	62%	7.7
Airports	181	63	35%	0.13	60	43	72%	6.1
Akcija	3270	1448	44%	0.01	1284	1126	88%	2.1
Aladin	669	58	9%	0.10	100	18	18%	8.8
Alchemy	84	10	12%	0.03	22	10	45%	8.5
Alea iacta est	24	11	46%	0.34	13	11	85%	5.9
Alice in the Digital World	948	247	26%	0.01	255	197	77%	3.8
Alien Numbers	1337	677	51%	0.00	664	600	90%	2.0
A List Game	4843	1429	30%	0.00	1371	1140	83%	3.0
All about that base	1915	732	38%	0.00	780	649	83%	2.9
All Different Directions	651	292	45%	0.00	269	235	87%	2.6
Allergy Test	259	88	34%	0.00	76	43	57%	7.1
All Friends	595	106	18%	0.00	99	50	51%	9.1
All Just A Dream	1073	239	22%	0.05	176	125	71%	6.1
All Pairs Shortest Path	5224	878	17%	0.02	597	416	70%	5.1
Almost Perfect	3593	836	23%	0.00	895	700	78%	3.4
Almost Union-Find	3961	649	16%	0.02	621	327	53%	6.9
Alphabet	218	116	53%	0.00	123	103	84%	3.0
Alphabet Spam	4015	2605	65%	0.00	1921	1844	96%	1.4
Alternative Bracket Notation	187	77	41%	0.00	81	67	83%	5.6
Amalgamated Artichokes	2905	1320	45%	0.01	1167	1017	87%	2.4
Amanda Lounges	1068	290	27%	0.04	256	197	77%	5.7
A Mazing!	1138	280	25%	0.09	128	92	72%	6.0
Amazing Race	236	60	25%	0.39	67	47	70%	7.2
Ambiguous Result	129	40	31%	0.03	55	38	69%	6.7
Amsterdam Distance	734	268	37%	0.00	314	241	77%	2.9
A Multiplication Game	194	48	25%	0.00	65	45	69%	5.5
Anagram Counting	1917	749	39%	0.00	717	592	83%	3.0
Andrew the Ant	108	39	36%	0.06	48	35	73%	4.8
A New Alphabet	6873	3131	46%	0.00	2960	2749	93%	1.6
Animal Classification	1158	235	20%	0.03	218	135	62%	7.1
An Industrial Spy	1134	586	52%	0.02	445	380	85%	3.3
Another Brick in the Wall	1374	732	53%	0.00	719	654	91%	1.9
Another Candies	4776	1280	27%	0.00	1361	1110	82%	2.9
Another Dice Game	78	57	73%	0.00	49	46	94%	3.7
Another Query on Array Problem	882	108	12%	0.05	185	78	42%	7.6
Anthony and Cora	537	140	26%	0.00	169	112	66%	5.9
Anthony and Diablo	1225	418	34%	0.00	471	400	85%	2.5
Antiarithmetic?	751	113	15%	0.01	198	91	46%	8.0
Ants	1696	782	46%	0.00	573	503	88%	2.4
Apaxiaaaaaaaaaaaans!	6114	3864	63%	0.00	3497	3355	96%	1.3
Apparatus	535	133	25%	0.01	111	84	76%	5.4
Apple Market	414	80	19%	0.07	88	47	53%	8.4
Apples, Cherries, and Mangos	291	92	32%	0.02	85	67	79%	6.1
Aquarium Tank	276	85	31%	0.00	78	60	77%	4.5
Aqueduct Construction	111	36	32%	0.01	32	26	81%	7.0
A Question of Ingestion	464	103	22%	0.00	93	71	76%	6.0
Arable Area	204	44	22%	0.04	49	29	59%	8.1
A Rational Sequence	1030	330	32%	0.00	373	261	70%	5.2
A Rational Sequence 2	1107	799	72%	0.00	737	701	95%	1.6
A Rational Sequence (Take 3)	445	377	85%	0.00	271	262	97%	1.7
Arbitrage?	1556	298	19%	0.04	219	177	81%	3.3
Arcade!	1011	189	19%	0.01	172	127	74%	6.0
Arctic Network	1028	368	36%	0.00	307	244	79%	4.5
A Real Challenge	3933	1898	48%	0.00	1870	1737	93%	1.7
Area of Effect	79	9	11%	3.16	14	7	50%	8.0
Arithmetic	1298	374	29%	0.00	367	283	77%	3.7
Army Strength (Easy)	2056	1078	52%	0.00	958	862	90%	2.0
Army Strength (Hard)	2769	1431	52%	0.01	966	855	89%	2.4
Around and Around We Go	28	11	39%	0.00	16	10	62%	7.9
Around the track	11	4	36%	0.01	5	4	80%	6.1
Around the Track	257	32	12%	0.00	49	22	45%	8.1
Arranging Hat	187	78	42%	0.05	73	63	86%	5.2
Arranging Wine	78	20	26%	0.03	28	19	68%	6.9
Arriving on Time	143	49	34%	0.04	46	39	85%	4.2
Artur	259	59	23%	0.06	66	42	64%	6.4
Artwork	685	249	36%	0.06	227	148	65%	5.9
A Safe Bet	217	68	31%	0.15	66	48	73%	6.4